On Thursday, 5 April 2018 at 21:11:53 UTC, Steven Schveighoffer
wrote:
But the old block doesn't go away! It's collected and stored in
a free list for future allocations.
-Steve
Big thanks, -Steve! Really program like the next:
==============8<==============
void main()
{
float[3] f;
float[3][] x;
float[3][] y;
writefln("float = %s bytes", float.sizeof);
writefln("float[3] = %s bytes", f.sizeof);
int total = 200;
foreach(i; 0..total)
{
foreach (j; 0..1000)
{
x ~= [0.01, 0.02, 0.03];
}
}
int before = MemoryUsage();
foreach(i; 0..total/2)
{
foreach (j; 0..1000)
{
y ~= [0.01, 0.02, 0.03];
}
}
int after = MemoryUsage();
writefln("%dK * float[3] = %d Kbytes", total/2,
(after-before));
}
==============>8==============
Prints:
float = 4 bytes
float[3] = 12 bytes
100K * float[3] = 1320 Kbytes
Very well. I'm thinking how to optimize my game program to not be
"pathological" on loading the models.
